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Jet Strikes Drone Near Heathrow Airport (marketwatch.com)

smooth wombat writes: "A British Airways flight Sunday appears to have collided with a drone on a flight bound for London's busy Heathrow Airport in what may be the first such incident involving a major airline," according to MarketWatch. "The flight from Geneva, Switzerland to Heathrow, Europe's busiest hub, is believed to have struck a drone, the London Metropolitan Police said in a statement. The plane landed safely following the incident, which occurred around 12:50 p.m. local time. 'It was only a matter of time before we had a drone strike given the huge numbers being flown around by amateurs who don't understand the risks and the rules,' said BALPA flight safety specialist Steve Landells... 'Much more education of drone users and enforcement of the rules is needed to ensure our skies remain safe from this threat'."

46 of 401 comments (clear)

  1. regulation by Noah+Haders · · Score: 4, Insightful

    I hope everybody is ok. This bodes very poorly for drone ultraregulation and enforcement. As the summary says, it was only a matter of time.

    1. Re:regulation by Anonymous Coward · · Score: 5, Insightful

      Here's the thing though-

      Every commercial plane is tested against strikes with fowl. Are they really going to tell me a drone is going to cause more damage that a chicken being shot through a cannon?

      https://en.wikipedia.org/wiki/Chicken_gun

      I get you don't want airspace to be packed with drones, but is an occasional strike really worth all this handwringing?

      It seems more they are in search of finding a reason to regulate than addressing any current problem.

    2. Re: regulation by cmurf · · Score: 3, Informative

      Yes. The battery is alot more dense than a bird. If a fan blade is even chipped, it can crack and splinter, in which case the entire engine breaks apart internally. There's a recent model simulating this floating around, and it shows the engine fan blades disintegrating in less than one revolution after impact.

    3. Re: regulation by Anonymous Coward · · Score: 5, Informative

      If a fan blade is even chipped

      Small chips are routinely repaired during engine overhauls by "blending"; filing and sanding away the sharp corners caused by FOD that accumulates in in-service engines. There are manufacturer guidelines covering the location and size of damage may be repaired through blending, and tool manufacturers sell specialized blending tools. Your claim that "even chipped" blades will disintegrate an engine is bogus. It is impossible to operate a gas turbine in real-world conditions without accumulating small "chips" in compressor and turbine blades and stators.

      Please don't make stuff up to amplify concerns about drones, or anything else for that matter.

    4. Re: regulation by oobayly · · Score: 2

      I was about to ask what the outcome of the enquiry was, and then realised you meant a helium balloon, not one with a basket full of people hanging below it.

      Coffee[0] awaits...

    5. Re: regulation by wonkey_monkey · · Score: 4, Insightful

      D'you know what, until said testing is done, I'm actually fine with "don't fly your drones near an airport, you twat."

      And, actually, I'm fine with that afterwards as well.

      --
      systemd is Roko's Basilisk.
    6. Re: regulation by thegarbz · · Score: 2

      Yes. The battery is alot more dense than a bird.

      A soft squishy bird yes, but they don't ingestion test with soft squishy birds, but rather solid frozen birds.

      LiPos are soft anyway. There's very little resistance to chopping them up with an ultra fast moving turbofan blade. I'd be more worried about the 4 solid chunks of ferrite and copper that make the little drone fly.

    7. Re: regulation by Anonymous Coward · · Score: 2, Interesting

      A soft squishy bird yes, but they don't ingestion test with soft squishy birds, but rather solid frozen birds.

      Are you sure?

    8. Re:regulation by gweihir · · Score: 3, Insightful

      Apparently, no repairs were needed, nobody was injured and they are not even sure it was a drone. Talk about irrational fears...

      --
      Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    9. Re: regulation by stealth_finger · · Score: 2

      I'd also like someone to test the claim that a lipo batteries are more devastating to a jet engine than a bird.

      It should be pretty obvious unless there are some iron eagles flying around.

      Are lipo batteries as hard as iron? Harder than bone?

      I'm not a bird guy or anything but aren't bird bones hollow, less dense and lighter than land based animals to help them fly? I don't think the compressor blades would have any problem shattering them to a jillion bits. Also aren't bones no where near as hard as iron to begin with?

      --
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    10. Re: regulation by Noah+Haders · · Score: 2

      1.5cm? That must be some cray euro coin. Here in America we use normal coins.

    11. Re: regulation by Joce640k · · Score: 2

      ...and millions of $$$ in repair bills.

      Just so some dickhead can fly his drone in a flight path? How about we say "no"?

      --
      No sig today...
    12. Re: regulation by Shetan · · Score: 2

      if you decide to cut through a lipo cell make sure it's fully charge and record it. also make sure you have proper protective gear and fire extinguishers.

      On second thought, just make sure it's fully charged and record it.

      Protective gear around the camera. We don't care if he's damaged, but we do want to see the footage.

  2. Re:"May Have" Struck a Drone by Frosty+Piss · · Score: 4, Interesting

    There has been no evidence presented that it hit a drone. Just speculation at this point

    Of course I get all my aerospace news from MarketWatch... However, other sources suggest the pilots saw it bounce off the nose:

    After landing, the pilot reported an object - believed to be a drone - had struck the front of the Airbus A320.

    As someone who works at a major Air Force bace that flies "heavies", I can tell you that often there is no physical damage and the only way to confirm a "bird strike" is the blood left behind, and small drones do not have blood.

    --
    If you want news from today, you have to come back tomorrow.
  3. Re:Manufacturer's responsibility by khallow · · Score: 2

    Why should a Chinese manufacturer know the rules of operation for your region of the world? It's not the manufacturer's responsibility because they aren't flying your drone for you nor do they know the specific rules or situation of your locale. You are and you should know that.

  4. Re:Manufacturer's responsibility by Frosty+Piss · · Score: 2

    The bilingual (Chinese/Chinglish) manual makes me understand how to operate the thing, but not a single word about safety. Just adding legal limits (e.g. minimum distance from airports, maximum height, distance from buildings - or even links to national web sites where such rules are explained) of where to fly them would be a great improvement.

    Here's a "common sense" suggestion that really shouldn't have to be in the manual: Don't fly your drone in the approach path of an airport.

    --
    If you want news from today, you have to come back tomorrow.
  5. Isn't that illegal ? by bugs2squash · · Score: 5, Funny

    If shooting them down is illegal then running them down with a 747 has to be illegal too.

    --
    Nullius in verba
  6. Re:Manufacturer's responsibility by wvmarle · · Score: 5, Insightful

    There are lots of "common sense" things, especially in US manuals, such as don't iron clothes on your body or while taking a bath.

    Obviously plenty of people need reminders.

  7. Re:Manufacturer's responsibility by wvmarle · · Score: 4, Insightful

    Putting in a general notice such as "limits may exist in your part of the world, look them up before flying this thing", and maybe even spending a few hours online to get links to rule making bodies in their major export markets, shouldn't be too much to ask.

  8. Re:Manufacturer's responsibility by Frosty+Piss · · Score: 2

    There are lots of "common sense" things, especially in US manuals, such as don't iron clothes on your body or while taking a bath. Obviously plenty of people need reminders.

    If you need to be "reminded" not to fly a drone in the approach path of an airport, you should not be flying a drone. As well, the "reminder" would probably do no do. Flying drones around airports is almost certainly a specific conscious decision.

    --
    If you want news from today, you have to come back tomorrow.
  9. Re:Obviously, no safety problem was demonstrated h by Alypius · · Score: 2

    ...a large bird of pray and those are regularly sucked through jet engines for the entire time such technology has existed. And yet we don't hear about any mitigation efforts. Why? Because there is NO DANGER.

    CAPT Sullenberger would beg to differ about the effects of bird strikes. Regardless, airports have robust anti-bird mitigation efforts.

  10. Re:Obviously, no safety problem was demonstrated h by Anonymous Coward · · Score: 5, Insightful

    What a moron. We have wait until an airliner crashes, then we do something, right? You'll notice that the thing was not sucked into an engine, and that the 747 was landing, not taking off. If both those criteria had been met then your post might read a little differently. You appear not to notice the research that has been conducted on bird strikes on large jets for many years. You also seem to be unaware of the unlucky passengers of light aircraft who have had large birds land in their laps, along with chunks of perspex and aluminium. The pilots are asking for more research, but you'd rather not find out because, hey, your rights trump everything and everyone.

  11. Birds are a real problem by dlenmn · · Score: 2

    The biggest danger isn't from birds of prey (at least in the USA); the danger is geese. There are serious geese mitigation efforts near major airports (example), and geese have seriously damaged and even brought down planes before (example).

    Did you do any research before posting? I've heard about these mitigation efforts, and I don't know anything about flying. Then again, the word "lazy" is in your handle...

  12. Re:Are drone dangers exaggerated? by turbidostato · · Score: 4, Informative

    "We don't worry about the dangers of birds"

    Excuse me?

    Civil aviation spends millions trying to avoid birds near the major airports.

    "perhaps it should actually show that small drones that weigh a few pounds really aren't more dangerous to aircraft than birds."

    Except that:
    1) We know (and act upon) birds *are* quite dangerous to aircraft.
    2) We know drones have a distintive characteristic that may make them more dangerous: they have an intelligent will backing them up (i.e.: adding explosives and/or the ability to crash on purpose).

  13. Why no engine grill? by Tablizer · · Score: 2

    Every other device has grills, why not jet engines? Birds have been causing problems also. Can't ban birds.

    1. Re:Why no engine grill? by RogueyWon · · Score: 4, Informative

      You don't put a grill over the engine, because all that would do with a large birdstrike is add bits of metal into the mass of bird going into the engine.

      Airports can, and do, put a huge amount of effort into clearing birds from around their runways, due to the risks that birdstrike presents during takeoff and landing. To quote from one of Heathrow Airport's own documents:

      Birds can present a safety risk if they become caught in aircraft engines. Heathrowâ(TM)s bird hazard management team aim to make the airport as unappealing as possible for birds through habitat management, disturbing birds using distress noises, letting off flares and, as a last resort, through culling.

      Bird populations can even influence the siting of airports. When a major recent UK study ruled out the construction of a new airport in the Thames Estuary (to the east of the capital), the scale of the bird-management that would be necessary was one of several reasons cited:

      The operational risk to the airport posed by birdstrike could increase the scale of compensatory habitat required as it would require it to be sited further away, ideally to a minimum of 20km away from the site, and certainly outside of the 13km bird safeguarding circle, increasing the uncertainty as to its suitability as replacement for the habitat lost. It may also necessitate additional mitigation measures to be put in place. If any remaining bird habitats within the 13km safeguarding circle (that is those not already displaced by the airport's direct impact) were considered to pose an operational safety risk additional mitigation measures would be needed and it may ultimately be necessary to remove those habitats, increasing further the environmental impact and cost of compensation.

    2. Re: Why no engine grill? by silentcoder · · Score: 5, Interesting

      Wow you would think the PHD level engineers that have been designing jet engines for decades would have thought of that ... and maybe if it was so easy, they would have done it by now ?

      There's only about a billion reasons it wouldn't work, and one of the first that springs to mind is that jet engines are sucking in air - at a huge speed (in many cases several times the speed of sound)... you stick a grill in there, you are reducing the possible airflow. That grill will have to be made of something incredibly (probably impossible) strong just to prevent it getting sucked in itself (seriously - you have no idea the force a jet engine generates -it's not like an air-conditioner - those things put out hundreds of KILONewtons in thrust). And if you actually build your super-grill, you will hugely weaken the engine because it will not be able to get air in as fast. Even most basic grill that actually does something useful will be at least a 30% reduction in engine power (50% is more likely for anything strong enough to do the job)... so now you'll need twice as many engines. Which means twice the fuel, and of course you've greatly increased the weight of the aircraft so you have to increase the wing-size massively to compensate... but that means you have to go *faster* to be able to generate enough lift which means you need more engines...

      They don't call it the tyranny of the rocket equation for nothing.

      --
      Unicode killed the ASCII-art *
    3. Re: Why no engine grill? by silentcoder · · Score: 2

      Because in the real world budgets matter and engines are expensive. Military Cargo planes may have four engines even though empty they can fly just fine on 2 but thats because "full" means "add the mass of a tank" or even "add the mass of another plane" like the B52s that were used to carry the X15 to altitude. The X15 being a rocket plane it is far less fuel efficient than a jet. It could go to space but it didnt carry enough fuel to get there from ground level.

      --
      Unicode killed the ASCII-art *
    4. Re:Why no engine grill? by KGIII · · Score: 2

      Do you seriously think you're smarter than the many, many Ph.D laden folks who work on this every single day for a lifetime?

      I'm not kidding - I'd love an answer. Do you really think they've not thought of this and that you're somehow more adept, smarter, and insightful than they are?

      I see this a lot here on Slashdot and it baffles me. "They should do X!" Umm... They've already tried X and, for whatever reason, decided X was stupid. They really do know more than you. If they need their Windows box cleaned of malware and maybe defragged then I'm sure they'll let you know.

      --
      "So long and thanks for all the fish."
  14. Re: Manufacturer's responsibility by mrbester · · Score: 3, Interesting

    The CE logo is protected, and there are fines for using it withoutwithout certification. So instead they use one that is very similar: In the proper one the circle described by the C intersects the one described by the E such that the outlines (if they were present) would overlap exactly.

    Anything that has the other logo is colloquially known as Chinese Export.

    What's really dumb is the general public is largely ignorant about the difference. If your house burns down due to a faulty CE certified device you can have redress. If your house burns down due to a faulty Chinese Export, well it was uncertified so tough shit.

    --
    "Wait. Something's happening. It's opening up! My God, it's full of apricots!"
  15. Re:I call BS by sjames · · Score: 2

    He saw something and there was a dull thud. They decided it must be a drone because that's a lot more exciting.

  16. Re:"May Have" Struck a Drone by Sarten-X · · Score: 2, Insightful

    No, they've said that such collisions could result in a loss of life.

    This drone apparently hit the plane's nose. If it were an engine intake at a critical moment, the story could be quite different. It happens occasionally with bird strikes, and it can happen with drones, that an incident will cause significant damage.

    One key difference between birds and drones, though, is that birds tend to avoid aircraft. Stupid humans, on the other hand, tend to do ever-dumber things without realizing the risks they're causing. Current drones are usually small, lightweight, plastic little things... but there are plenty of larger kits out there, and improving battery technology is making it cheaper and easier to pose a real threat. The age of rare aviation is over, and now everyone can put an obstacle into the flight path if they want to, without even realizing that there's a danger to others.

    It's a careful balance to be struck... Little Bobby's 6-ounce toy isn't a risk, but if Bobby starts flying a drone at age 10 without any limits, he won't be expecting limits when he flies a 20-pound drone at age 20. Trying to record the neighbor girl sunbathing might be rude, but trying to record the takeoff of an approaching single-engine airplane might be deadly.

    That's the concern for lawmakers and airlines. Current technology and incidents present only annoyances for pilots, but now is the time to start thinking about regulation, and hopefully lay out reasonable limits. Don't wait until after the first deadly drone strike, when all the politicians bring their knee-jerk reactions.

    --
    You do not have a moral or legal right to do absolutely anything you want.
  17. Re:Manufacturer's responsibility by Tuidjy · · Score: 4, Insightful

    Oh, yes, definitely, the manual for the Chinese drone should include all the relevant air safety laws for your location. Just like my Japanese Supra came with a copy of the California Driver Handbook. Oh, wait, it did not!

    Knowing the applicable laws is the user's responsibility. The drone's documentation should contain what's applicable to the drone, not a compendium of all laws governing the use of airspace from the North to the South pole. Even if the local regulations required that the relevant laws are included with the drone, it would be probably left to the local distributor to do so.

    --
    No good deed goes unpunished...
  18. Re:Manufacturer's responsibility by Alwin+Henseler · · Score: 2

    On most products, such warning labels aren't there to inform users; they're there to give vendor a legal pass in case user does something stupid.

    On electrical equipment: "do not submerge in water", "do not operate when cord is damaged". On something that uses (open) flame: "do not place near curtains or other combustible items". On a plastic bag: "do not eat". Or anything along those lines. Come on... Darwin takes care of that. The labels are there so vendor can say "well we did warn the users!".

    Which is exactly the reason such warnings are often missing from gear that people buy directly from China. The vendor doesn't care. By the time something goes wrong, they've already moved on & changed company name a few times.

  19. A new cult: Drone Danger Denial by Required+Snark · · Score: 5, Funny
    Just like other conspiracy cults before them, say flat earthers, anit-vaxxers, birthers, 9/11 conspiracy nutjobs, and UFO creeps, Slashdot is now home to the DDD: Drone Danger Denial cult.

    1) The first rule of DDD: drones cannot cause any problem ever in any situation.

    2) The second rule of DDD: always defend drones as harmless no matter what the circumstance. For example if firefighters call off aerial retardant drops because drones are flying in the fire zone: the missed drops didn't make any difference and/or drones didn't pose any interference and the authorities should have just kept flying.

    In the current post three of the major denial themes are stated.

    1) It wasn't a drone.

    2) If there was a drone, nothing happened.

    3) If there was a drone interaction, there was no actual damage.

    It's so simple even the dullest of Slashdot Pundits can execute it with ease.

    BTW, I've actually participated in a project with the FAA addressing bird strike mitigation. They take any physical impact on a aircraft very seriously. It's not just birds, but any strike by FOD (Foreign Object Debris). That includes anything on a runway, like trash. At DFW airport in Texas, they have a problem with foxes who live in the airport and are stuck by aircraft. They collect and monitor the corpses, and have a burial location for their bodies. The FAA has records of rodent strikes, when their carcasses are found on runways. Anything hitting a aircraft is considered very significant. Saying that it's not important is just a pledge of allegiance to the DDD. A true blue cult member.

    --
    Why is Snark Required?
    1. Re:A new cult: Drone Danger Denial by Mr.+Shotgun · · Score: 2

      UAS pilots are not idiots, if I hear a low flying manned aircraft I immediately dive to the ground. It is not like a stupid bird.

      You may very well not be an idiot, you might operate your drone with intelligence and common sense and are aware of how to fly your UAS safely. If so good for you, way to set the example!

      But the problem is not you, it is those idiots that do not think about the consequences of their actions that is making your hobby look like shit. Like the moron that flew his drone into a fire zone causing the fire fighters to ground their flights. Or another idiot that dropped his drone onto a kid at a movie theater. Or that one genius that crashed his drone on the white house lawn. These guys are the problem and who are getting everyone so riled up about drones.

      So I want you to do yourself and every other responsible drone operator a favor: If you are out flying with your buddies and you see or hear about them about to do something stupid, go over there, grab them by the shirt, and slap the fucking taste out of their mouth. Because they are doing more harm to your hobby than a thousand regulatory busybodies ever could.

      --
      Of all tyrannies, a tyranny sincerely exercised for the (supposed) good of its victims may be the most oppressive
  20. Re:Are drone dangers exaggerated? by wonkey_monkey · · Score: 3, Insightful

    And, do you really think that if someone wants to use a drone to try crashing a plane, the regulation is going to stop them?

    Might as well take that stupid "murder" law off the books as well, then, eh?

    --
    systemd is Roko's Basilisk.
  21. Re:Manufacturer's responsibility by Rockoon · · Score: 2

    Warning: This ladder is not a flotation device.

    --
    "His name was James Damore."
  22. Re:Loss of one engine deadly near takeoff by Anonymous Coward · · Score: 5, Informative

    Totally wrong. Pilots regularly train for engine failures at all stages of takeoff, and unless spectacularly mishandled, does NOT lead to the plane crashing.

    Also, losing an engine in cruise does NOT cause the a/c to start losing altitude quickly. Sure, you'll have to drift down to a single engine cruise altitude but it's not nearly as harsh as the poster seems to think.

  23. Re:"May Have" Struck a Drone by Sique · · Score: 2
    Birds always start against the wind, so they get maximum uplift. If your car is going with the wind, birds will fly up in the direction of your oncoming car. It's not that birds are dumb, it's that it is the fastest and least costing way to get airborne. This is an observation which already the Wright brothers made when they were studying the flight of birds before the construction of their first motorplane.

    Even commercial airplaines start against the wind if possible, so the layout of an airport is always with the landing stripe in the main wind direction. If that's not possible, airports have at least a second landing stripe at an angle to the first one, and they choose the landing stripe that is as close as possible to the current wind.

    --
    .sig: Sique *sigh*
  24. Re: "May Have" Struck a Drone by drinkypoo · · Score: 3, Insightful

    This is bullshit. All you have to do is park your car on the side of the highway close to the teavel lane to experience the extreme buffeting that shakes the entire car as every single vehicle goes by at high speed 6 feet away.

    Yes, as the vehicle passes, not before it gets there. I see why you didn't log in, son.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  25. Re:Manufacturer's responsibility by Deagol · · Score: 2

    All bets are off when we live in a world where "WARNING: Contains peanuts" is a thing on containers of peanut butter.

  26. Re:Loss of one engine deadly near takeoff by Lothsahn · · Score: 2

    Unless you're china airlines flight 006:

    https://en.wikipedia.org/wiki/...

    Note: It SHOULDN'T cause that, no. But it has happened and could again. Failures during flight could cascade to worse events, and have before.

    --
    -=Lothsahn=-
  27. Re:Loss of one engine deadly near takeoff by phorm · · Score: 2

    "and unless spectacularly mishandled, does NOT lead to the plane crashing."

    Yes, because when a man-made object hits your engine and causes it to pretty much blow apart in a terribly unpredictable way in a crowded airfield during one of the most sensitive parts of the flight, mishandling by the pilot is obviously going to be fault of any crash...

  28. Relative by DrYak · · Score: 2

    A point of comparison:
    - based on TNT content a hand grenade release between 400 and 800kJ when exploding. (example of source)
    - unit conversion: 1Wh battery = 3.6 kJ (and 1Ah or 1000mAh x 3.7 V = 3.7 Wh = 13.3 kJ)

    So your garden variety ~3000mAh LiPo "18650" 3.7V cell holds a little bit under 40kJ.
    Your laptop long life 9-cell 8900mAh battery pack holds a little bit under 100Wh or nearly 360kJ, about the same ballpark range as a smaller grenade (hence the xkcd comic).

    A long-ranged drone's (e.g.) 6s high voltage (= 6* 3.7V = 22V) 16000mah is 355 Wh or a whoping 1.2 MJ.
    This drone has a battery that gives of the same range of energy as two hand grenades.

    Yup, this is dwarfed buy the combustion of kerosene: 1 liter gives of 37 Mj (or about the same as pile of about a thousand "18650" batteries - fuel is still a denser energy storage than lithium). And the combustion chamber of the jet engine will probably not even notice if a puny little drone battery went "poof" inside.

    The thing is, an air-plane is far more than just the interior of the jet engine's combustion chamber.
    And there are a lot of parts of that air-plane that wont appreciate the explosion of a drone battery.
    Think of it, if you need to test it by throwing chicken at it (ball park estimate: an average chicken weights ~2.5 kg. I use an approximate speed difference of 500km/h. That gives us Ecin = 1/2mv^2 = about 25 kJ of cinetic energy), an air-plane is going to take some damage from the equivalent of 2 hand grenades lobed at it.

    A single drone impact won't cause the plane to sustain a catastophic hull failure (as TFA points out, the plane successfully landed safely afterwards), but it's certainly going to do a lot more damage that fowl.
    When ingested by the engine, even if combustion chamber won't suffer much, the turbine is going to take quite some damage.

    --
    "Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
  29. Why do you ignore geese? by SuperKendall · · Score: 2

    This may surprise you, but birds that are not predators do in fact weigh much more than a drone. A canadian goose is 7-14 pounds and yes they DO fly, in fact they fiy a lot! One of the larger drones, the DJI - Phantom 3, weighs 1280g (just battery and propellers) - 2.82 pounds. You can't add much more than a pound in payload, so it's significantly lighter than a goose.

    The reason geese are the reference for birdstrikes as they are by far the most common problem for planes hitting birds because there are so many of them in flight during migration at altitudes that can easily mess with landing/takeoff..

    --
    "There is more worth loving than we have strength to love." - Brian Jay Stanley